Is there any significant increase in traffic to the featured-site of any particular day? How large is this effect?
For people unfamiliar with the featured site: it's a graduated site randomly chosen and listed in the sidebar of stackexchange.com. Today it's quantitative finance. I don't think I've ever been to the site. Does it get any significantly more traffic today, or on other days that the site was featured, than it did yesterday or tomorrow?
I suspect the effect is very small, if at all measurable, in particular since the lowest traffic sites, which aren't graduated, are ineligible.
(NB: featured site has nothing to do with featured questions or bounties.)